User blog comment:Elliott6016/Mewtwo as a starter in randomizer?/@comment-33885936-20180417043049/@comment-32358261-20180418030640

Actually no. It’s 802. Because PBB doesn’t have the new Pokémon from usum (like zeraora and the UB)

I think there are like 20 or so mega and 20 or so Alola forms so all together it would be at least 820 available Pokémon.

I wasn’t counting mega.